I swam with 4 others today in the YMCA lap lanes, and we circle swam! It was organized at least. Two of the guys couldn't exactly keep up with what Damon and I were doing, but they held up pretty good.

Warmup (we all did something different)

I did:
500 Free
100 Kick w/ board
400 Free Pull
(1000/1000)

At this point I told everyone to decide on something around 500 yards or so, and we'll do it. Made the intervals work for a majority of us. Tony was a bit out of shape, so anything past the warmup was tough for him. Jeff doesn't have the formal swim team training, so he just does his best. Damon is just a year or more out of swim team shape, but he can lifeguard like the best of them!
Damon's set:
3 x 100 Free @ 1:45 Fast Pace (went 1:03/1:05/1:05)
2 x 100 Free @ 1:30 Faster Pace (went 1:04/1:04)
1 x 100 Free @ Fastest Time (went 1:03)
I had fun with this. I can't do this on my own for some reason, but with the group it was easier to go faster.
(600/1600)